Except in accordance with a resolution passed by a majority of the total membership of the Cabinet, a person exercising the functions of the office of President in terms of subsection (1) must not exercise the power of the President— (a) to deploy the Defence Forces; (b) to enter into any international convention, treaty or agreement; (c) to appoint or revoke the appointment of a Vice-President, Minister or Deputy Minister; or (d) to assign or reassign functions to a Vice-President, Minister or Deputy Minister, including, in the case of a Vice-President or Minister, the administration of any Act of Parliament or of any Ministry or department, or to cancel any such assignment of functions.